Buckle assembly for strap shortening



FIG. 1 is a perspective view embodying my new design;

FIG. 2 is a side plan view;

FIG. 3 is a top plan view;

FIG. 4 is a front plan view;

FIG. 5 is a bottom plan view; and,

FIG. 6 is a rear plan view.

The broken line showing of a belt, in FIG. 1, is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a buckle assembly for strap shortening, as shown. 